I will be constructing a small, charcoal-fired aluminium foundry with the intent on casting many small and useful items, and perhaps moulding and casting items printed by the Makerbot. I will be using the instructions found in the pamphlet "The Charcoal Foundry" by David Gingery.
Please save your aluminium cans, and we can use them in the melt!
Have you seen this? http://www.instructables.com/id/My-Second-Aluminium-Foundry/? --adric
Another Recycle idea, http://blog.makezine.com/archive/2010/11/how-to_embossed_metal_box_from_beve.html